Monroe m



@auch gisten atat @ffice MONROE M. COPP, OE ALBION, ASSIGNOE To A. EAENES, OE EOOISIESTEE,-

i NEW YORK.

Lata-S Patat No. 78,579, avec .am 2, 186s,

IMPROVED THILL-COUPLING FOR GARB'IAGES.

TO ALL WHOM IT` MAY CONCERN:

Be it know-n that I, MONROE M. COPP, oflAlbion, in the county of Orleans, and State of New York, assigner to A. Karnes, of Rochester, New York, have'invented a .certain new and useful Improvement in ThilL Couplings for Carriages and I do hereby declare that the following is a full andexact description thereof, reference being had to the accompanying drawings, making part of this specification, i

Figure 1 is a plan of my improved coupling.

Figure 2, a. longitudinal vertical section. A

Figure 3, a perspective view of the clamp-hook.-

Like letters of reference indicate corresponding parts in all the figures.

My invention consists in the employment of aclamp-hooll;l at the end of the jack, in combination with a thill-iron, made branched or forked ,at its end, to stride the' hook, the whole as hereinafter described.

As represented inthe drawings, A is ,the jack, secured to the axle bythe usual clip, and B is the thiltiron coupling thereto.I

'The front end of the'jack projects some distance-out from the axle, and has a half circular groove, a, for the reception ofthe journal of the.thilliron, and a hole', b, for the reception of the screw-boltof the clamp-hook.

The clamp-hook C consists simply of ahead, CZ, with halt` circular groove, a', enclosing` the journal of the thin-iron, and ,screw-boltf passing down through hole of tho jack, having a nut, 7g, screwing thereon for tightening the clamp-hook down. The groove a c of suflioient size to admit of a packing, g, being wrapped around the journal of the thill-iron.

The th'ill-iron, instead of being ofthe ordinary solid form, resting between jaws of the jack, has a journal, L, that fits in the groove a a', and two forks or branches, z', kthat stride the clamp-hook. l

There are several- Iimportant advantages secur'edby this arrangement. First, the construction is very simple and cheap, much' more so than' in any other device with which I am acquainted, and the device is very strong. s econth'thc thill-iron is inserted or removed with great dispatch and ease. To accomplish this, it is 'only necessary tb turn'or unturn the* nut 7c. It will be noticed thatin .removing the thill-iron, the clampdioolg haste he raised only the thickness of thejournal 7L, and this can be done without detaching thenutk. This is of greatbenet, for the'parts thus secured cannotget lost.4 In ordinary couplings, the parts have to be entirely detached and disconnected. vWhen the nut is uns'crewed in my device, the hook can be turned around .to one side, so that the thill-iron' can be lifted directly out without sliding backward. Third7 thepacking is readily inserted or removed. It is only necessary to -cut a strip oill th'c proper length, and wind it on the journal la, lay it in the groove, and clamp the hook down upon-it. In ordinary couplings, where a packing is fitted around the bolt passing through the thill-iron, it is a dilicult task to apply it; In mine itis readily donc, for the reason that the journal, upon which it is wound,.is open, and the hook, under which it is inserted, is 'readily turned te one side. 1

The peculiar construction of the thill-iron, with the journal h and branches z' i, not only enables the'same to stride'the hook, but it also imparts additional strength to that portion of the iron where the greatest strain comes. i i Y #What I claim asmy invention, and desire to secure by Letters Patent', is-- The convex-headed capV C, provided with the square shoulder b and lscrew-nut' 7c, said head being recessed v to receive One-halt` o' the drawlbolt t, and form, with the recess of the bar A, a complete eye, `and a shield to exclude dust from the same, in combination with the forked thill-iron B and jack A, arranged andoperating substantially as and for the purposes set forth. v

In Witness whereof, I have hereunto signed .my name, in the presence of two subscrihingrwitnesses.

A i l MONROE M. COPP,

Witnesses:

J. A. DAVIS, K CHAs. F. SPENOE. 

